The Seiko 5Y31-5140 is a watch model based on the 5Y31 movement.
Parts List
| RECN00JN01 | crystal |
| RECN00JN | crystal |
| 30MA6NA1 | crown - crown |
| 0G0055B01 | case back gasket - crown and stem gasket |
| 0H2702N01 | case back gasket - case back gasket |
| 0G0055B0 | case back gasket |
| B1594J | band - metal band |
| B1594S | band - metal band |
| 09T04N1H | others - hour hand |
| 09T04N1M | others - minute hand |
| 0351670 | others - winding stem |
| 5Y315140 | others - case back |
| 5Y31514029 | others - case |
| 5Y315200XN14 | others - dial |
| 5Y315208XN14 | others - dial |
| 5Y319 | others - machine code |
| 82800680 | others - case ring |
| A180BS | others - push pin |
| 13SC04A2 | others - second hand |